package com.lewis.core.utils.file;

/**
 * 媒体类型工具类
 *
 * @author Lewis
 */
public class MimeTypeUtil {

	public static final String IMAGE_PNG = "image/png";

	public static final String IMAGE_JPG = "image/jpg";

	public static final String IMAGE_JPEG = "image/jpeg";

	public static final String IMAGE_BMP = "image/bmp";

	public static final String IMAGE_GIF = "image/gif";

	public static final String[] IMAGE_EXTENSION = {"bmp", "gif", "jpg", "jpeg", "png"};

	public static final String[] FLASH_EXTENSION = {"swf", "flv"};

	public static final String[] MEDIA_EXTENSION = {"swf", "flv", "mp3", "wav", "wma", "wmv", "mid", "avi", "mpg", "asf", "rm", "rmvb"};

	public static final String[] VIDEO_EXTENSION = {"mp4", "avi", "rmvb"};

	public static final String[] DEFAULT_ALLOWED_EXTENSION = {
			// 图片
			"bmp", "gif", "jpg", "jpeg", "png",
			// word excel powerpoint
			"doc", "docx", "xls", "xlsx", "ppt", "pptx", "html", "htm", "txt",
			// 压缩文件
			"rar", "zip", "gz", "bz2",
			// 视频格式
			"mp4", "avi", "rmvb",
			// pdf
			"pdf"};

	public static String getExtension(String prefix) {
		switch (prefix) {
			case IMAGE_PNG:
				return "png";
			case IMAGE_JPG:
				return "jpg";
			case IMAGE_JPEG:
				return "jpeg";
			case IMAGE_BMP:
				return "bmp";
			case IMAGE_GIF:
				return "gif";
			default:
				return "";
		}
	}
}
